Why is it harder to breathe when climbing up a high mountain?(1 point)
Responses
The air has more moisture.
The air has more moisture.
The air pressure increases.
The air pressure increases.
The air is thinner.
The air is thinner.
The air compresses the lungs.
The air is thinner.
Which statement correctly describes the mesosphere?(1 point)
Responses
Atmospheric changes in this layer cause weather at Earth’s surface.
Atmospheric changes in this layer cause weather at Earth’s surface.
Meteors burn up in this layer to create shooting stars.
Meteors burn up in this layer to create shooting stars.
The Northern Lights are visible in this layer.
The Northern Lights are visible in this layer.
Commercial airplanes fly through this layer.
Meteors burn up in this layer to create shooting stars.
Use the scenario to answer the question.
A student is examining scientific evidence to support the following claim.
“Life is possible because of the unique mixture of gases that cycle through the Earth’s spheres.”
Which evidence best supports the student’s claim?
(1 point)
Responses
a diagram illustrating how plants use carbon dioxide, water, and sunlight to produce food and oxygen gas
a diagram illustrating how plants use carbon dioxide, water, and sunlight to produce food and oxygen gas
an illustration demonstrating how the depletion of the ozone layer is not blocking out the sun’s ultraviolet rays
an illustration demonstrating how the depletion of the ozone layer is not blocking out the sun’s ultraviolet rays
a photograph capturing a nighttime meteor shower
a photograph capturing a nighttime meteor shower
a timeline detailing when an erupting volcano releases lava, ash, and gases
a timeline detailing when an erupting volcano releases lava, ash, and gases
a diagram illustrating how plants use carbon dioxide, water, and sunlight to produce food and oxygen gas
Which question can best be answered by studying a diagram of the carbon cycle?(1 point)
Responses
How does the process of transpiration cause plants to release water through their leaves?
How does the process of transpiration cause plants to release water through their leaves?
How are fossil fuels formed from the decay of dead plants and animals in the biosphere?
How are fossil fuels formed from the decay of dead plants and animals in the biosphere?
How are fossil fuels processed and used to power industries?
How are fossil fuels processed and used to power industries?
How is surface water, underground water, and moisture in the atmosphere recycled?